DIN EN 24937:1992-11 Determination of chromium content of steel and iron by potentiometric or visual method (ISO 4937:1986); german version EN 24937:1990
1992DIN EN 24937:1992-11 Determination of chromium content of steel and iron by potentiometric or visual method (ISO 4937:1986); german version EN 24937:1990
1992DIN EN 24937:1992 Determination of chromium content of steel and iron by potentiometric or visual method (ISO 4937:1986); german version EN 24937:1990